Lack of testing on this module during updates, I went from 7.5.1 to 8.6 and all the conf was lost... and a return to 7.5.1 did not reappear the old configurations ... in short, everything to do again :-(
And now, after switching to 8.8, the exclusions no longer work.
Too bad but I uninstall and switch to SwitchyOmega which is simple and works better.